<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        body {
            width: 100%;
            height: 100vh;
            display: grid;
            padding: 0;
            margin: 0;
            grid-auto-flow: column;
            grid-template-rows: 10vh 90vh;
        }
        
        header,
        main {
            border: 1px solid slateblue;
        }
        
        header {
            background: tomato;
        }
        
        main {
            background: yellowgreen;
            display: grid;
            grid-auto-flow: row;
            grid-template-columns: .8fr 2fr .8fr;
            grid-template-rows: 100% 30%;
            transition: all .8s;
        }
        
        main>div:nth-child(1) {
            background: saddlebrown;
        }
        
        main>div:nth-child(2) {
            background: slateblue;
        }
        
        main>div:nth-child(3) {
            background: darksalmon;
        }
        
        main>div:nth-child(4) {
            background: cornflowerblue;
            grid-column-start: 1;
            grid-column-end: 4;
        }
        
        main>.left {
            display: grid;
            grid-template-rows: 50% 50%;
            grid-auto-flow: column;
        }
        
        main>.right {
            display: grid;
            grid-template-rows: 50% 50%;
            grid-auto-flow: column;
        }
        
        .top {
            background: aqua;
        }
        
        .bottom {
            background: tomato;
        }
        
        @media only screen and (min-height:750px) {
            main {
                grid-template-rows: 75% 25%;
            }
        }
        
        .biu {
            width: 200px;
            height: 200px;
            border: 3px solid blueviolet;
            border-radius: 100px;
            animation: rotates 3s linear infinite;
            display: grid;
            box-sizing: border-box;
            place-items: center;
            background: burlywood;
        }
        
        @keyframes rotates {
            from {
                transform: rotate(0deg);
            }
            to {
                transform: rotate(360deg);
            }
        }
    </style>
</head>

<body>
    <header></header>
    <main>
        <div class="left">
            <div class="top"></div>
            <div class="bottom"></div>
        </div>
        <div class="center">
            <div class="biu">旋转跳跃</div>
        </div>
        <div class="right">
            <div class="top"></div>
            <div class="bottom"></div>
        </div>
        <div class="bottom"></div>
    </main>
</body>

</html>